I think the latest 4K rippers use an intermediate software driver that allows them to work with all (or nearly all) 4K UHD BD drives. MakeMKV uses this driver.
Edit: Added ‘4K UHD’ to last sentence
Yeah, it's MakeMKV that I use, but when I got the drive I had to also flash it with custom firmware. If that's no longer necessary, that's great news!
I just got another external drive (to save wear on the other) but it's a refurb that I suspect is too old for UHD, firmware aside.